Listar Mechanical Engineering por título

Mostrando ítems 10-29 de 46

    • Central Water-Cooled Chill Water Plant 

      Hernández, Daniel A. (Polytechnic University of Puerto Rico, 2015)
      A medical device facility in the island needs to determine the feasibility of replacing the existing air-cooled chilled water system at their main plant with a more efficient water-system in order to reduce the electric ...

    • CFD Study to Analyze the Behavior of Secondary Flow Using Fillets 

      Tafur Bermúdez, Lourdes (Polytechnic University of Puerto Rico, 2015)
      Secondary flow are a series of vortex created at the leading edge of the blade. These vortexes decrease the efficiency of the turbine by creating a non-uniform flow which will pass to successive blade stages. The ...

    • CFD-Based Method for Validation of DATCOMand Potential Flow Stability and Control Derivatives 

      Concepción Morales, Willie (Polytechnic University of Puerto Rico, 2021)
      DATCOM wasuse traditionally as the method to determine the aircraft downwash, and longitudinal stability and control derivatives for small unmanned air vehicles conceptual designat the Polytechnic ...

    • Cost Improvement Process - LAL Sample Selection Procedure 

      Alvarez Delgado, Frank (Polytechnic University of Puerto Rico, 2021)
      The Cost Improvement Process for LAL (Limulous Amoebocyte Lysate) Sample Selection Procedure was identified with the purpose of reduction of cost and increase in revenue. This process was analyzed and overviewed, estimating ...

    • Crack Growth in Compressive Stress Fields 

      Méndez Cuevas, Luis Gadiel (Polytechnic University of Puerto Rico, 2013)
      To understand how to analyze Damage Tolerance in an aerospace component loaded in compression one must first obtain correct Fatigue Crack Growth curves. Once the fatigue data curves are correct one could then move forward ...

    • Crecimiento de las Microcavidades en el Área del Cuello bajo la Prueba de Tensión 

      Mulero Ramírez, Joseph (Polytechnic University of Puerto Rico, 2016)
      En esta investigación usted encontrará unos registros de datos e ilustraciones que fueron analizados sobre una serie de pruebas realizadas a varios especímenes de aleación de Aluminio 6061- T6 bajo la prueba de tracción ...

    • Data Center Design and Airflow Management (Insight into Increasing Performance and Efficiency) 

      Roncoli Venegas, Edward (Polytechnic University of Puerto Rico, 2015)
      The formation of hot spots in data centers is usually caused by the inability to properly distribute the airflow and not for the lack of capacity by the cooling system. Airflow management is essential to reduce the ...

    • Design of a Double Pipe Heat Exchanger in Counter Flow Configuration Using Numerical Analysis 

      Pérez Capó, Kenny (Polytechnic University of Puerto Rico, 2022)
      The Double Pipe Heat Exchanger in counter flow configuration consists of one fluids flow from the inner pipe while the other flows in the opposite direction from the outer pipe. This project analyzed and designed this heat ...

    • Development of an Open Source Tool for the Preliminary Structural Design of a Small Wind Turbine Based on National and International Standards 

      Miranda Vélez, José A. (Polytechnic University of Puerto Rico, 2013)
      Wind energy have proven to be a viable option in the production of electricity. The benefits from wind energy sources include reductions in greenhouse gas emissions, water conservation and the diversification of the ...

    • Difference Between Ribbed or Dimpled Systems 

      Ortiz Andujar, Angel J. (Polytechnic University of Puerto Rico, 2023)
      The purpose of this design project is to compare the heat transfer and pressure drop phenomena in different cases. The project was carried out with two different models, that is, a channel with ribs and another with dimples ...

    • Diseño de Programa de Dimensionamiento Preliminar de Compresor Axial de Doble Eje 

      Carbonell Colón, Martín J. (Polytechnic University of Puerto Rico, 2022)
      En la actualidad, se están desarrollando en todo el mundo proyectos de gran envergadura relacionados con el desarrollo energético, siendo más comunes los proyectos y creaciones de modelos para la ...

    • Do You Stay Connected, or Do You Disconnect? 

      Lozada Figueroa, Sergio Andrés (Polytechnic University of Puerto Rico, 2023)
      This Research Project is based on the lack of knowledge in the area of solar energy in Puerto Rico. Yes, a low percentage of residents have invested in solar systems. The current power grid is not reliable and it’s constantly ...

    • Dynamic Modeling and Control System Design for a Passenger Coaxial Dodecacopter 

      Nieves Nevárez, Mairim (Polytechnic University of Puerto Rico, 2022)
      Personal Aerial Vehicles (PAVs) are drones that provide transportation to passengers. The airframe and propulsion systems of a manned dodecacopter, or Personal VTOL Vehicle, were previously developed by ...

    • Enclosure design for an automated vacuum application 

      Flores Milán, Mario R. (Polytechnic University of Puerto Rico, 2019)
      The plastic injection industries make use of the Deflashing Machine, which requires to recycle the filter that collects the plastic shaving dust, down to 0.2um. A series of automated subsystems, located in portable ...

    • Enhancements to Cardinal Health NPS Lab to USP-787 Standards 

      Figueroa Rodriguez, Jose A. (Polytechnic University of Puerto Rico, 2020)
      As the world develops and populations expand, new diseases arise at an exponential rate. This research is based on employing new modifications to NPS (Nuclear Pharmacy Services) Laboratory at Cardinal Health, Inc. ...

    • Finite Element Analysis of Sandwich T-Joints Subjected to Water Slamming Loads 

      Rivera Santos, Luis J. (Polytechnic University of Puerto Rico, 2018)
      This article evaluates the structural response of a sandwich ship hull with T-joint longitudinal stiffeners subjected to water slamming. Finite element analysis was conducted using the commercial code LS-DYNA. The ...

    • Finite Element Modeling of Water Slamming on Sandwich Hull Structures 

      Rivera Yusif, Juan (Polytechnic University of Puerto Rico, 2017)
      This article evaluates the structural response of ship hull sandwich panels subjected to water slamming. Structural responses were obtained from several finite element (FE) model simulations developed by using the ...

    • Free Convection Fresnel Lenses Concentrator 

      Ortiz Rosado, Javier (Polytechnic University of Puerto Rico, 2013)
      This project involves an evaluation of an improved Fresnel lenses solar energy concentrator. Its innovation consists of preventing forced convection heat losses at the receiver area. Heat losses by convection and by ...

    • Horizontal Axis Wind Turbine Blade Design for the Urban Areas in Puerto Rico 

      Castanon Pereira, Angel L. (Polytechnic University of Puerto Rico, 2022)
      Horizontal Axis Wind Turbines are the preferred and most common method for power extraction from wind. In this study, the researcher will test three different airfoils to design a blade that optimizes ...

    • Horizontal Fall Arrest and Restraint System Design for High Altitude Construction and Maintenance Work 

      Landron Torres, Milton L. (Polytechnic University of Puerto Rico, 2020)
      Horizontal fall arrest system design and implementation for future construction and maintenance work atop Building 10 of the International Distribution Center facilities of Cardinal Health located in Guaynabo, Puerto ...